Freeze Sequence - Koolaire KD0172A Lnstallation, Operation And Maintenance Manual

Operation
Energized Parts Chart
INITIAL START-UP/
START UP AFTER
AUTO SHUT-OFF:
1. Pressure
Equalization
2. Refrigeration
System Start-up
FREEZE
SEQUENCE:
3. Pre-Chill
4. Freeze
HARVEST
SEQUENCE:
5. Harvest
AUTOMATIC SHUT-
OFF:
6. Auto Shut-Off
* Condenser Fan Motor: The fan motor is wired through a fan cycle pressure control, therefore, it may cycle on and off.
12
CONTROL BOARD RELAYS
1 2
WATER HOT GAS
PUMP VALVE
OFF ON
OFF ON
OFF OFF
ON OFF
OFF ON
OFF OFF
3 3A
RELAY COMPRESSOR
COIL
OFF OFF
ON ON
ON ON
ON ON
ON ON
OFF OFF
RELAY
3B
CONDENSER 
FAN MOTOR
OFF
ON
ON
ON
ON
OFF
Part Number 040004686 8/15
Section 3
LENGTH
of "ON"
TIME
15
Seconds
5
Seconds
30
Seconds
Until 7 sec.
water contact
with ice
thickness
probe
Bin switch
activation
Until
bin switch
re-closes